SME
Grade 12 Math
Conic sections: parabolas, ellipses and hyperbolas
The main lesson, then each kind of problem it solves.
Conic sections: parabolas, ellipses and hyperbolas
Main lesson
Parabola: focus and directrix
Use this for “Find the focus and directrix of (x − 2)² = 8(y + 1).”
Hyperbola: foci and asymptotes
Use this for “Find the foci and asymptotes of x²/9 − y²/16 = 1.”
Which conic is it?
Use this for “Which conic is 4x² − 9y² = 36?”
Conics as slices of a cone
Use this for “Why are circles, ellipses, parabolas and hyperbolas called conic sections?”